ref: 936fc76ad65f794b054885cda4c1d458e8731875
dir: /docs/content/showcase/letsencrypt/bio.md/
Let's Encrypt is a free, automated, and open certificate authority (CA), run for the public's benefit. It is a service provided by the [Internet Security Research Group (ISRG)](https://letsencrypt.org/isrg/).